Imperial College London
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Professor Tim Green, FREng

Faculty of Engineering, Department of Electrical and Electronic Engineering

Academic Leader for Sustainability, Professor
 
 
 
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Contact

 

+44 (0)20 7594 6171t.green Website CV

 
 
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Location

 

1107EElectrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Bashar:2021:10.1109/tpwrd.2020.2982512,
author = {Bashar, E and Rogers, D and Wu, R and Ran, L and Jennings, M and Green, TC and Mawby, P},
doi = {10.1109/tpwrd.2020.2982512},
journal = {IEEE Transactions on Power Delivery},
pages = {102--113},
title = {A new protection scheme for an SSSC in an MV network by using a varistor and thyristors},
url = {http://dx.doi.org/10.1109/tpwrd.2020.2982512},
volume = {36},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - To control power flow and manage fault level in meshed MV networks, back-to-back voltage source converters (B2B-VSCs) are being used. However, their high cost and relatively low efficiency are of concerns. Partially rated series compensators, such as SSSCs or UPFCs, are desired but come with the challenge of protecting the device during grid faults. Their potential of use has been limited in comparison with the fully rated back-to-back converters. This paper proposes a new system topology including thyristor crowbars and a varistor to protect the SSSC in an MV network and improve the reliability and flexibility of the network operation. Using the proposed method, the time required for isolating the series compensator from the grid is reduced from at least 20 ms, corresponding to the interruption time of conventional circuit breakers, down to 3 μs in the worst case in addition to the grid fault detection delay. The performance is evaluated by simulation. A small-scale single-phase prototype operating at 230 V/16 A is tested in order to demonstrate the concept.
AU  - Bashar,E
AU  - Rogers,D
AU  - Wu,R
AU  - Ran,L
AU  - Jennings,M
AU  - Green,TC
AU  - Mawby,P
DO  - 10.1109/tpwrd.2020.2982512
EP  - 113
PY  - 2021///
SN  - 0885-8977
SP  - 102
TI  - A new protection scheme for an SSSC in an MV network by using a varistor and thyristors
T2  - IEEE Transactions on Power Delivery
UR  - http://dx.doi.org/10.1109/tpwrd.2020.2982512
UR  - https://ieeexplore.ieee.org/document/9044399
UR  - http://hdl.handle.net/10044/1/77645
VL  - 36
ER  -
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